143232243345666 has 24 divisors (see below), whose sum is σ = 311110433816364. Its totient is φ = 47625018566400.

The previous prime is 143232243345619. The next prime is 143232243345677. The reversal of 143232243345666 is 666543342232341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 130335992757441 + 12896250588225 = 11416479^2 + 3591135^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9921871651 + ... + 9921886086.

Almost surely, 2^{143232243345666} is an apocalyptic number.

143232243345666 is an abundant number, since it is smaller than the sum of its proper divisors (167878190470698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143232243345666 is a wasteful number, since it uses less digits than its factorization.

143232243345666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19843758146 (or 19843758143 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 54.

The spelling of 143232243345666 in words is "one hundred forty-three trillion, two hundred thirty-two billion, two hundred forty-three million, three hundred forty-five thousand, six hundred sixty-six".